铁岗水库浮游植物群落结构及演替特征研究  

Community structure and succession characteristics of phytoplankton in Tiegang reservoir

作　　者：潘鸿 杨扬[2] 唐宇宏[3] 孟庆峰 杨昱 PAN Hong;YANG Yang;TANG Yuhong;MENG Qingfeng;YANG Yu(School of Public Health,Zunyi Medical University,Zunyi,Guizhou 563000,China;Institute of Hydrobiology,Jinan University,Guangzhou,Guangdong 510632,China;School of Management,Zunyi Medical University,Zunyi,Guizhou 563000,China)

机构地区：[1]遵义医科大学公共卫生学院,贵州遵义563000 [2]暨南大学水生生物研究中心,广东广州510632 [3]遵义医科大学管理学院,贵州遵义563000

出　　处：《贵州师范大学学报（自然科学版）》2019年第4期13-18,共6页Journal of Guizhou Normal University：Natural Sciences

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07211-003,2009ZX07211-009)

摘　　要：分别于2010年和2011年的7月(丰水期)和12月(枯水期)对铁岗水库5个样点的浮游植物样品进行采集,初步检出113种(含变型和变种)浮游植物,分属7门10纲20目35科75属。其中,绿藻55种、蓝藻22种、硅藻21种。细小隐球藻、细小平裂藻、狭细贾丝藻、断裂颤藻、水华束丝藻、颗粒直链藻极狭变种、梅尼小环藻、小球藻、针形纤维藻、月牙藻、双对栅藻、四角十字藻和空星藻为丰水期优势种;狭细贾丝藻、给水席藻、颗粒直链藻极狭变种、梅尼小环藻、尖针杆藻、小球藻和双对栅藻为枯水期优势种。丰水期和枯水期浮游植物丰度为(3.69±2.38)×107cells/L和(3.99±2.58)×107cells/L;生物量为(11.74±3.99)mm3/L和(18.61±16.60)mm3/L;Margalef指数为(1.43±1.01)和(1.44±1.00);Shannon-Weaver指数为(2.17±0.13)和(1.72±0.36);Pielou均匀度指数为(0.73±0.11)和(0.64±0.25)。铁岗水库浮游植物演替特征表现为Shannon-Weaver指数和绿藻物种丰富度增加,浮游植物丰度降低;优势种由单一蓝藻型演替为多门类复合型,物种组成由蓝-绿-硅藻型演替为绿-蓝-硅藻型。There were 113 species/subspecies of phytoplankton in the Tiegang reservoir which collected from 5 sampling sites in the wet (July) and dry period (December) of 2010 and 2011.These species of phytoplankton were belong to 7 phyla,10 classes,20 orders,35 families and 75 genera.Among of them,the chlorophyta,cyanophyta and bacillariophyta were 55,22 and 21species/subspecies,respectively.The Aphanocapsa elachista , Merismopedia minima , Jaaginema angustissimum , Oscillatoria fraca , Aphanizomenon flos-aquae , Melosira granulata var. angustissima , Cyclotella meneghiniana , Chlorella vulgaris , Ankistrodesmus aciculars , Selenastrum bibraianum , Scenedesmus bijuga , Crucigenia quadrata and Coelastrum sphaericum appear in wet period as the dominant species.The J.angustissimum , Phormidium irriguum , M.granulata var. angustissima , C.meneghiniana , Synedra acus , C.vulgaris and S.bijuga appear in dry period as the dominant species.In the wet and dry period,the abuncance of pahytoplankton were (3.69±2.38)×10 7 cells/L and (3.99±2.58)×10 7 cells/L,the biovolume were (11.74±3.99) mm 3/L and (18.61±16.60) mm 3/L,the Margalef index were (1.43±1.01) and (1.44±1.00),the Shannon-Weaver index were (2.17±0.13) and (1.72±0.36),the Pielou index were (0.73±0.11) and (0.64±0.25).The succession characteristics of phytoplankton community were included that the increasing of Shannon-Weaver index and species richness of chlorophyta,decreasing the abundance.The dominant species successed from cyanophyta type to multi-phylum complex type.The species composition was changed from Cyano-Chloro-Bacillariophyta type to Chloro-Cyano-Bacillariophyta type.

关 键 词：浮游植物 群落结构 演替 铁岗水库 

分 类 号：Q145.2[生物学—生态学]